INA1620: PCM1796 and INA1620

kevin chiu

Part Number: INA1620
Other Parts Discussed in Thread: PCM1796

I have a question for the application between INA1620 and PCM1796

does it need to add a OPA between the PCM1796 and INA1620?

0 Chris Featherstone over 2 years ago

Hello,

I am looking into your question and will respond back by tomorrow end of day. Thank you for your patience.

0 kai klaas69 over 2 years ago

Guru 140200 points

Hi Kevin,

the first OPAmp stage is necessary to perform the current to voltage conversion.

Kai

0 kevin chiu over 2 years ago in reply to kai klaas69

Hi Kai,

OK, could you please show me the part number of this OP Amp and detail circuitry.

Thanks a lot!

0 Chris Featherstone over 2 years ago in reply to kevin chiu

Kevin,

Yes you need to provide a current to voltage conversion. I will put together an example.

0 kai klaas69 over 2 years ago in reply to kevin chiu

Guru 140200 points

Hi Kevin,

look at figures 36 and 37 of datasheet of PCM1796

Kai

0 Chris Featherstone over 2 years ago in reply to Chris Featherstone

Kevin,

As Kai suggested there are examples I will provide here.

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